diff --git a/test/gfx/invalid-bkgd.err b/test/gfx/invalid-bkgd.err
new file mode 100644
index 00000000..c2d5fb44
--- /dev/null
+++ b/test/gfx/invalid-bkgd.err
@@ -0,0 +1 @@
+warning: libpng found while reading PNG image ("invalid-bkgd.png"): bKGD: invalid
diff --git a/test/gfx/invalid-bkgd.out.2bpp b/test/gfx/invalid-bkgd.out.2bpp
new file mode 100644
index 00000000..94d79e8d
Binary files /dev/null and b/test/gfx/invalid-bkgd.out.2bpp differ
diff --git a/test/gfx/invalid-bkgd.out.pal b/test/gfx/invalid-bkgd.out.pal
new file mode 100644
index 00000000..0d37980d
--- /dev/null
+++ b/test/gfx/invalid-bkgd.out.pal
@@ -0,0 +1,2 @@
+Ò
+„ÿÿÿÿ
\ No newline at end of file
diff --git a/test/gfx/invalid-bkgd.png b/test/gfx/invalid-bkgd.png
new file mode 100755
index 00000000..8cfd4177
Binary files /dev/null and b/test/gfx/invalid-bkgd.png differ